沖縄県産ハナゴウナ科の4種

概要

論文の詳細を見る
Four eulimid snail species collected from Okinawa Island and Ishigaki Island are described and illustrated, three as new records from Japan and one as a new taxonomic opinion. Stilifer barroni A. Adams, 1854 is observed to be an endoparasite on the red spotted starfish Neoferdina cumingi (Gray, 1840) on a coral reef slope at Seragaki, Okinawa, collected by Scuba. Peasistilifer nitidula (Pease, 1860) is observed to be an ectoparasite of the black sea cucumber Holothuria atra, as reported in past studies from shallow seagrass areas. Arcuella mirifica Nevill, 1874 and Teretianax baculumpastoris (Melvill & Standen, 1896) have been collected live under rocks on Ishigaki in the Yaeyama Islands. However, no information was obtained concerning their host. The author examines morphological variation in some specimens of T. baculumpastoris, and places Teretianax suteri (Oliver, 1915) in the synonymy of this species.
2006-03-31